[Ramrod]

An article from the New York Times

When immigration proceeds at a steady but modest clip, deep change comes slowly, and there’s time for assimilation to do its work. That’s why the Muslim population in Europe has been growing only at one percentage point a decade; it’s why many of the Turkish and North African immigrants who arrived in Germany and France decades ago are reasonably Europeanized today.

But if you add a million (or millions) of people, most of them young men, in one short period, you get a very different kind of shift.